Sash-frame-holding means.



E. T. GASKILL.

SASH FRAME HOLDING'MEANS. APPLICATION men JULY '2. I913.

1 ,142,954:. Patented June 15, 1915.

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ELIJAE T. 'GASKILL, or NEW'BERN, NORTH CAROLINA, ASSIGNOR or ONE-HALF ToJAMES A. BRYAN, or NEWBERN, NoRTHoARoLINA.

SASH-ERAME-HOLDING MEANS.

Specification of Letters Patent. I Patented June 15, 1915.

Application filed .Tu1y 2, 1913. Serial No. 777,064.

To all whom it may concern:

Be it known that I, ELIJAH T. GAsKILL, a' citizen of the United States,residing at Newbern, of North Carolina, have invented certain new anduseful Improvements in Sash- Frameliolding Means, of which the followingis a specification.

My invention relates to window constructions wherein novel spring meansare provided to hold the sash or sashes in adjust ment at desiredvertical positions.

An important object of this invention is to improve, in general, theconstruction of the means of the above mentioned character, whereby thesame are rendered more convenient in use, durable, and eflicient in fulfilling their function.

A further object of the invention is to provide novel spring means tohold the sash or sashes in adjustment at desired vertical positions,such means being so constructed that the same will evenly distribute thepressure upon the sash, whereby the same is not only held againstvertical movement but both ends thereof are held against shaking orrattling.

A further object of my invention is to provide means of the abovementioned character which may be installed upon many different windowstructures, without materially altering their construction.

A further object of this invention is to provide means of the abovementioned char acter which are simple in construction, cheap tomanufacture, strong and durable.

Other objects and advantages of this invention will be apparent duringthe course of the following description.

In the accompanying drawings forming a part of this specification and inwhich like numerals are employed to designate like parts throughout thesame, Figure 1 is a longitudinal sectional view through the windowstructure, taken adjacent and inwardly of one of the side portionsthereof, Fig. 2is a perspective View of the lower sash, parts beingbroken away, Fig. 3 is a horizontal sectional view taken on line 33 ofFig. 1, and, Fig. 4 is an outer side elevation of the lower sash frame,parts thereof being broken away. 7

In the drawings, wherein is illustrated a preferred embodiment of myinvention, the numeral 5 designates a window frame, as a in the countyof Craven and State whole, including upstanding side pieces 6,:

as shown; v

The numeral 7' designates an upper pref-' erably stationary Ineral 8designates a lower vertically movable sash frame. Disposed between thesash frames 7 and 8 is a parting-bead 9, as shown.

The numeral 9 designates an inner binding strip, and 10 an outer bindingstrip.

The lower sash frame 8' includes oppositely arranged vertical strips'orsides 11, each of which is provided upon its outer face with alongitudinal recess or opening 12, having a longitudinally curved bottomwall 13, the ends of which are curved or bowed inwardly toward theiroppositeends, as more clearly illustrated in Fig. 1. Disposed withineach of the openings or recesses 12 is a suitably sash frame, whilethenuside 11 by means of screws 14 or the like, the same being disposedequidistantly be tween the ends of the leaf-spring. The leafspring ispermanently bowed or curved longitudinally throughout its entire length,the same extending outwardly toward its opposite ends, that is, inopposite direction to the curvature of the wall 13. The curvedleaf-spring 14: preferably has its free ends forked, to receive rollers15, held therein by means of pins 16 or the like.

Mounted upon the inner face of each binding strip 10 is a track or rail17, attached thereto suitable means. gaged by therollers 15. Theserpentine track or rail is formed of alternate small cutwardlyextending turns 18 and large inwardly extending turns 19, the same beingmade upon the arc of circles having different length diameters. Theturns in each set are made upon arcs of circles having the same lengthdiameters. Each small and large turn is curved in opposite directions inuniform manner, the small turns being formed upon the arc of a circlehaving a radius of a same length. as the radius of the peripheries ofthe rollers 15, whereby the rollers will fit snugly therein. The largeturns 19 so space the small turns that the two rollers 15 carried by theleaf-spring will always move into registration with two of the smallturns, whereby the spring will uniformly distribute the pressure uponthe sash frame. By providing the inwardly longitudinally curved wall 13to the central portion of which is by any This track or rail isenattached the outwardly longitudinally curved leaf-spring 14, uponswinging the free ends of the leaf-spring 1 L inwardly, the innerportions thereof engage the wall 13, whereby the length of the endportions of the leaf spring are gradually shortened, with the resultthat the pressure that the leaf-spring afiords is gradually increased.By this means'the leafspring may be constructed relatively slight and atthe same time properly hold the sash frame in place.

It is obvious that the sash frame 8 may be moved vertically to thedesired position, and will be held therein by the leaf-spring or springslet and associated elements.

It is to be understood that the form of my invention herewith shown anddescribed is to be taken as a preferred example of the same, and thatcertain changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention or thescope of the subjoined claim.

Having described my invention, I claim In combination; a window frameprovided with spaced guide strips; a vertically movable sash framedisposed for movement between the guide strips and provided upon oneside thereof with a longitudinal recess terminating near and spaced fromthe opposite ends of the sash frame and having a longitudinally curvedbottom wall increasing in depth toward the opposite ends thereof; aserpentine track secured to the inner side of one guide strip and havingand small equidistantly spaced turns, all of the small turns havingsubstantially the same radii; a normally longitudinally curved leafspring arranged upon one side of the sash frame within the longitudinalrecess and terminating near and spaced from the opposite ends of thesash frame with its ends extending away from the sash frame; meansrigidly attaching the central portion of the curved leaf spring to thein- Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. 6.

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